Any experienced body filler guys out there ?

. This car will never touch water as long as I own it. Under that circumstance it will hold up for a few years if not more. If it remains dry, which it will
I hate to tell you but humidity is wet.

My dart is a So Cal car. Every exposed bare metal surface is surface rusted, ( not like east coast cars)

All chrome is slightly pitted

Being 2 miles from the beach it's entire life is hard on anything. Salty humidity!